22351533056 has 88 divisors (see below), whose sum is σ = 46058335176. Its totient is φ = 10833592320.

The previous prime is 22351533053. The next prime is 22351533059. The reversal of 22351533056 is 65033515322.

It is an interprime number because it is at equal distance from previous prime (22351533053) and next prime (22351533059).

It can be written as a sum of positive squares in 4 ways, for example, as 19219456 + 22332313600 = 4384^2 + 149440^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22351533053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12009566 + ... + 12011426.

Almost surely, 2^22351533056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22351533056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23029167588).

22351533056 is an abundant number, since it is smaller than the sum of its proper divisors (23706802120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22351533056 is a wasteful number, since it uses less digits than its factorization.

22351533056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235 (or 2217 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 35.

The spelling of 22351533056 in words is "twenty-two billion, three hundred fifty-one million, five hundred thirty-three thousand, fifty-six".